I have very good hatch rates with the incuview. I drilled and added a couple holes on top to add water and additional temp probes. I use a Weber meat thermometer probe to have a couple different ways to monitor temp. Mine is in basement where it is low 60’s. I made a box with insulation to set mine down into. Not sure if it’s needed but figured it wouldn’t hurt. You should be able to find an article on my profile with the modifications I made. Best mod was drilling more hole so you’re not adding water directly on top over the eggs who could possibly get dripped on.